Start making SardemFF happy. Use g_return_if_fail

include/mode-private.h

@@ -19,7 +19,7 @@ typedef char * ( *_mode_get_completion )( const Mode *sw, unsigned int selected_
  */
 typedef int ( *_mode_token_match )( const Mode *data, char **tokens, int not_ascii, int case_sensitive, unsigned int index );
 
-typedef void ( *__mode_init )( Mode *sw );
+typedef int ( *__mode_init )( Mode *sw );
 
 typedef unsigned int ( *__mode_get_num_entries )( const Mode *sw );
 

include/mode.h

@@ -53,8 +53,10 @@ typedef enum
  * @param mode The mode to initialize
  *
  * Initialize mode
+ *
+ * @returns FALSE if there was a failure, TRUE if successful
  */
-void mode_init ( Mode *mode );
+int mode_init ( Mode *mode );
 
 /**
  * @param mode The mode to destroy

include/rofi.h

@@ -69,5 +69,15 @@ __attribute__ ( ( nonnull ( 1, 2, 3, 4 ) ) );
  * @returns EXIT_FAILURE if failed to create dialog, EXIT_SUCCESS if succesfull
  */
 int show_error_message ( const char *msg, int markup );
+
+#define ERROR_MSG( a )    a "\n"                                       \
+    "If you suspect this is caused by a bug in rofi,\n"                \
+    "please report the following information to rofi's github page:\n" \
+    " * The generated commandline output when the error occored.\n"    \
+    " * Output of -dump-xresource\n"                                   \
+    " * Steps to reproduce\n"                                          \
+    " * The version of rofi you are running\n\n"                       \
+    " <i>https://github.com/DaveDavenport/rofi/</i>"
+#define ERROR_MSG_MARKUP    TRUE
 /*@}*/
 #endif

include/textbox.h

@@ -39,14 +39,14 @@ typedef struct
 
 typedef enum
 {
-    TB_AUTOHEIGHT    = 1 << 0,
+    TB_AUTOHEIGHT = 1 << 0,
-        TB_AUTOWIDTH = 1 << 1,
+    TB_AUTOWIDTH  = 1 << 1,
-        TB_LEFT      = 1 << 16,
+    TB_LEFT       = 1 << 16,
-        TB_RIGHT     = 1 << 17,
+    TB_RIGHT      = 1 << 17,
-        TB_CENTER    = 1 << 18,
+    TB_CENTER     = 1 << 18,
-        TB_EDITABLE  = 1 << 19,
+    TB_EDITABLE   = 1 << 19,
-        TB_MARKUP    = 1 << 20,
+    TB_MARKUP     = 1 << 20,
-        TB_WRAP      = 1 << 21,
+    TB_WRAP       = 1 << 21,
 } TextboxFlags;
 
 typedef enum

source/dialogs/combi.c

@@ -99,7 +99,7 @@ static void combi_mode_parse_switchers ( Mode *sw )
     g_free ( switcher_str );
 }
 
-static void combi_mode_init ( Mode *sw )
+static int combi_mode_init ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) == NULL ) {
         CombiModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
@@ -108,7 +108,9 @@ static void combi_mode_init ( Mode *sw )
         pd->starts  = g_malloc0 ( sizeof ( int ) * pd->num_switchers );
         pd->lengths = g_malloc0 ( sizeof ( int ) * pd->num_switchers );
         for ( unsigned int i = 0; i < pd->num_switchers; i++ ) {
-            mode_init ( pd->switchers[i] );
+            if ( !mode_init ( pd->switchers[i] ) ) {
+                return FALSE;
+            }
         }
         if ( pd->cmd_list_length == 0 ) {
             pd->cmd_list_length = 0;
@@ -120,6 +122,7 @@ static void combi_mode_init ( Mode *sw )
             }
         }
     }
+    return TRUE;
 }
 static unsigned int combi_mode_get_num_entries ( const Mode *sw )
 {

source/dialogs/dmenu.c

@@ -243,10 +243,10 @@ static void dmenu_mode_free ( Mode *sw )
     }
 }
 
-static void dmenu_mode_init ( Mode *sw )
+static int dmenu_mode_init ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) != NULL ) {
-        return;
+        return TRUE;
     }
     mode_set_private_data ( sw, g_malloc0 ( sizeof ( DmenuModePrivateData ) ) );
     DmenuModePrivateData *pd = (DmenuModePrivateData *) mode_get_private_data ( sw );
@@ -302,7 +302,7 @@ static void dmenu_mode_init ( Mode *sw )
             error_dialog ( msg, TRUE );
             g_free ( msg );
             g_free ( estr );
-            return;
+            return TRUE;
         }
         g_free ( estr );
     }
@@ -310,6 +310,7 @@ static void dmenu_mode_init ( Mode *sw )
     if ( fd != NULL ) {
         fclose ( fd );
     }
+    return TRUE;
 }
 
 static int dmenu_token_match ( const Mode *sw, char **tokens, int not_ascii, int case_sensitive, unsigned int index )

source/dialogs/drun.c

@@ -227,13 +227,14 @@ static void get_apps ( DRunModePrivateData *pd )
     }
 }
 
-static void drun_mode_init ( Mode *sw )
+static int drun_mode_init ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) == NULL ) {
         DRunModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         mode_set_private_data ( sw, (void *) pd );
         get_apps ( pd );
     }
+    return TRUE;
 }
 
 static ModeMode drun_mode_result ( Mode *sw, int mretv, char **input, unsigned int selected_line )

source/dialogs/run.c

@@ -304,13 +304,15 @@ static char ** get_apps ( unsigned int *length )
     return retv;
 }
 
-static void run_mode_init ( Mode *sw )
+static int run_mode_init ( Mode *sw )
 {
     if ( sw->private_data == NULL ) {
         RunModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         sw->private_data = (void *) pd;
         pd->cmd_list     = get_apps ( &( pd->cmd_list_length ) );
     }
+
+    return TRUE;
 }
 
 static unsigned int run_mode_get_num_entries ( const Mode *sw )

source/dialogs/script.c

@@ -98,13 +98,14 @@ typedef struct _ScriptModePrivateData
     unsigned int cmd_list_length;
 } ScriptModePrivateData;
 
-static void script_mode_init ( Mode *sw )
+static int script_mode_init ( Mode *sw )
 {
     if ( sw->private_data == NULL ) {
         ScriptModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         sw->private_data = (void *) pd;
         pd->cmd_list     = get_script_output ( (const char *) sw->ed, &( pd->cmd_list_length ) );
     }
+    return TRUE;
 }
 static unsigned int script_mode_get_num_entries ( const Mode *sw )
 {

source/dialogs/ssh.c

@@ -362,13 +362,14 @@ typedef struct _SSHModePrivateData
  * Initializes the SSH Mode private data object and
  * loads the relevant ssh information.
  */
-static void ssh_mode_init ( Mode *sw )
+static int ssh_mode_init ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) == NULL ) {
         SSHModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         mode_set_private_data ( sw, (void *) pd );
         pd->hosts_list = get_ssh ( &( pd->hosts_list_length ) );
     }
+    return TRUE;
 }
 
 /**

source/dialogs/window.c

@@ -495,21 +495,23 @@ static void _window_mode_load_data ( Mode *sw, unsigned int cd )
         }
     }
 }
-static void window_mode_init ( Mode *sw )
+static int window_mode_init ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) == NULL ) {
         ModeModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         mode_set_private_data ( sw, (void *) pd );
         _window_mode_load_data ( sw, FALSE );
     }
+    return TRUE;
 }
-static void window_mode_init_cd ( Mode *sw )
+static int window_mode_init_cd ( Mode *sw )
 {
     if ( mode_get_private_data ( sw ) == NULL ) {
         ModeModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
         mode_set_private_data ( sw, (void *) pd );
         _window_mode_load_data ( sw, TRUE );
     }
+    return TRUE;
 }
 static ModeMode window_mode_result ( Mode *sw, int mretv, G_GNUC_UNUSED char **input,
                                      unsigned int selected_line )

source/mode.c

@@ -10,11 +10,12 @@
  * @{
  */
 
-void mode_init ( Mode *mode )
+int mode_init ( Mode *mode )
 {
-    g_assert ( mode != NULL );
+    g_return_val_if_fail ( mode != NULL, FALSE );
-    g_assert ( mode->_init != NULL );
+    g_return_val_if_fail ( mode->_init != NULL, FALSE );
     mode->_init ( mode );
+    return TRUE;
 }
 
 void mode_destroy ( Mode *mode )
@@ -63,7 +64,7 @@ ModeMode mode_result ( Mode *mode, int menu_retv, char **input, unsigned int sel
 {
     g_assert ( mode != NULL );
     g_assert ( mode->_result != NULL );
-    g_assert ( (*input) != NULL );
+    g_assert ( ( *input ) != NULL );
     return mode->_result ( mode, menu_retv, input, selected_line );
 }
 
@@ -101,7 +102,7 @@ int mode_check_keybinding ( const Mode *mode, KeySym key, unsigned int modstate
 void mode_free ( Mode **mode )
 {
     g_assert ( mode != NULL );
-    g_assert ( (*mode) != NULL );
+    g_assert ( ( *mode ) != NULL );
     if ( ( *mode )->keycfg != NULL ) {
         g_free ( ( *mode )->keycfg );
         ( *mode )->keycfg = NULL;

source/rofi.c

@@ -1870,7 +1870,11 @@ static void run_switcher ( ModeMode mode )
     // Otherwise check if requested mode is enabled.
     char *input = g_strdup ( config.filter );
     for ( unsigned int i = 0; i < num_modi; i++ ) {
-        mode_init ( modi[i].sw );
+        if ( !mode_init ( modi[i].sw ) ) {
+            error_dialog ( ERROR_MSG ( "Failed to initialize all the modi." ), ERROR_MSG_MARKUP );
+            teardown ( pfd );
+            return;
+        }
     }
     do {
         ModeMode retv;